________ it comes to the increasing use ofmotor vehicles in the cities，some people think it should be limited

My sister is only three years old. She can’t take careof _______.

When does the shop________ It__________from 8 a.m to 10 p.m ..

Look! The boy is singing _____________ the classroom.

Is Kate coming to the party this evening?— No, she _________ be the party. She________ to the UK.